Biological Opinions - Bureau of Reclamation

LIST OF FIGURES
Figure 3.1. The action area for Reclamation’s proposed action. ................................................... 8
Figure 3.2. Location of the Project in the Upper Klamath River Basin of Oregon and California
(Reclamation 2013a). .............................................................................................................. 9
Figure 4.1. Modeled EWA and Project Supply, based on UKL supply (Reclamation 2012). ..... 34
Figure 4.2. Modeled UKL Reserve, EWA, and Project Supply based on available UKL water
supply (Reclamation 2012). .................................................................................................. 35
Figure 7.1. The LRS and the SNS currently occur in UKL, reservoirs along the Klamath River,
Clear Lake, Tule Lake, and the Lost River; the SNS is also found in Gerber Reservoir. .... 55
Figure 7.2. Adult spawning populations of suckers in UKL have consistently declined since at
least 2001, as estimated by two approaches using mark-recapture models in Program
MARK (from Hewitt et al. 2012). The number of spawning female LRS in UKL has
declined by 60 to 80 percent between 2002 and 2010. ......................................................... 58
Figure 7.3 Historic April through November deliveries to Project from UKL. ........................... 63
Figure 7.4 Modeled April through November deliveries to Project from UKL. .......................... 64
Figure 7.5 Model results of orthophosphate concentrations from just downstream of Klamath
Straits Drain discharge. The “With Klamath Straits Drain/Lost River Diversion Channel”
results are from the 2002 calibration model (ODEQ 2010). ................................................. 75
Figure 7.6 Sprague River trends, water years 1921 through 2012................................................ 85
Figure 7.7 Sprague River trends, water years 1981 through 2012................................................ 86
Figure 7.8 Sprague River trends, water years 1991 through 2012................................................ 87
Figure 7.9 Sprague River trends, water years 2001 through 2012................................................ 88
Figure 7.10 Williamson River trends, water years 1918 through 2012. ....................................... 89
Figure 7.11 Williamson River trends, water years 1981 through 2012. ....................................... 89
Figure 7.12 Williamson River trends, water years 1991 through 2012. ....................................... 90
Figure 7.13 Williamson River trends, water years 2001 through 2012. ....................................... 91
Figure 7.14 UKL trends, water years 1981 through 2012. ........................................................... 92
Figure 7.15 UKL trends, water years 1991 through 2012. ........................................................... 92
Figure 7.16 UKL trends, water years 2001 through 2012. ........................................................... 93
Figure 7.17 UKL: net inflow departure from median. .................................................................. 94
Figure 8.1 UKL elevations at the end of October (kaf = thousand acre-feet). ........................... 118
Figure 8.2. UKL elevations at the end of November (kaf = thousand acre-feet). ..................... 119
Figure 8.3. UKL elevations at the end of December (kaf = thousand acre-feet). ...................... 120
Figure 8.4. UKL elevations at the end of January (kaf = thousand acre-feet). .......................... 121
Figure 8.5. UKL elevations at the end of February (kaf = thousand acre-feet). ........................ 123
Figure 8.6. UKL elevations at the end of March (kaf = thousand acre-feet). ............................ 124
Figure 8.7. UKL elevations at the end of April (kaf = thousand acre-feet). .............................. 125
Figure 8.8. UKL elevations at the end of May (kaf = thousand acre-feet). ............................... 126
Figure 8.9. UKL elevations at the end of June (kaf = thousand acre-feet). ............................... 127
Figure 8.10. UKL elevations at the end of July (kaf = thousand acre-feet). .............................. 128
Figure 8.11. UKL elevations at the end of August (kaf = thousand acre-feet). ......................... 129
Figure 8.12. UKL elevations at the end of September (kaf = thousand acre-feet). ................... 130
Figure 8.13. Generalized annual pattern of water-level changes in the UKL and Gerber
Reservoir and in Clear Lake over a longer time period as a result of the proposed action
compared to what would occur if the proposed action were not implemented. In general,
x